Add PCH tests for R336379

I seemingly forgot the tests for this commit, added here.

llvm-svn: 336380

1 files changed, 28 insertions, 0 deletions

diff --git a/clang/test/PCH/pch-through2.cpp b/clang/test/PCH/pch-through2.cpp
new file mode 100644
index 00000000000..6bf7a29d9a0
--- /dev/null
+++ b/clang/test/PCH/pch-through2.cpp
@@ -0,0 +1,28 @@
+// Create
+// RUN: %clang_cc1 -I %S -emit-pch \
+// RUN:   -pch-through-header=Inputs/pch-through2.h -o %t.1 %s
+
+// Use
+// RUN: %clang_cc1 -I %S -include-pch %t.1 \
+// RUN:   -pch-through-header=Inputs/pch-through2.h %s
+
+// No #include of through header during pch use
+// RUN: not %clang_cc1 -I %S -include-pch %t.1 \
+// RUN:   -pch-through-header=Inputs/pch-through2.h \
+// RUN:   %S/Inputs/pch-through-use1.cpp 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-TEST2A %s
+// CHECK-TEST2A: fatal error:{{.*}} #include of
+// CHECK-TEST2A-SAME: 'Inputs/pch-through2.h' not seen while attempting to
+// CHECK-TEST2A-SAME: use precompiled header
+
+// check that pch only contains code before the through header.
+// RUN: %clang_cc1 -I %S -emit-pch \
+// RUN:   -pch-through-header=Inputs/pch-through1.h -o %t.2 %s
+// RUN: not %clang_cc1 -I %S -include-pch %t.2 \
+// RUN:   -pch-through-header=Inputs/pch-through1.h \
+// RUN:   %S/Inputs/pch-through-use1.cpp 2>&1 \
+// RUN:   | FileCheck -check-prefix=CHECK-TEST3 %s
+// CHECK-TEST3: error: use of undeclared identifier 'through2'
+
+#include "Inputs/pch-through1.h"
+#include "Inputs/pch-through2.h"